Home / 89,750.50-123,856.45-49,464.36

Finding the Fourth Proportional to 89,750.50, 123,856.45 and 49,464.36

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Solution

The fourth proportional to 89,750.50, 123,856.45 and 49,464.36 is: 68,261.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    89,750.50 : 123,856.45 = 49,464.36 : x
  2. Step 2: Convert to fraction form
    89,750.50/123,856.45 = 49,464.36/x
  3. Step 3: Cross multiply
    89,750.50x = 123,856.45 × 49,464.36
  4. Step 4: Simplify right side
    89,750.50x = 6,126,479,907.46
  5. Step 5: Solve for x
    x = 6,126,479,907.46/89,750.50
  6. Step 6: Final answer
    x = 68,261.24

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.